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Volume 49 Issue 12
Dec.  2022
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Article Contents

Generation of Plvap-CreER and Car4-CreER for genetic targeting of distinct lung capillary populations

doi: 10.1016/j.jgg.2022.08.001
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This study was supported by the National Key Research & Development Program of China (2019YFA0110403, 2019YFA080200), the National Science Foundation of China (82088101, 32050087, 91849202, 31730112).

  • Received Date: 2022-01-26
  • Accepted Date: 2022-08-01
  • Rev Recd Date: 2022-08-01
  • Publish Date: 2022-08-23
  • It has been reported recently that there are two distinct subpopulations of capillary endothelial cells in the mammalian lungs: gCap (general capillary) and aCap (aerocyte). They are identified by two unique markers, respectively: plasmalemmal vesicle-associated protein (PLVAP) and carbonic anhydrase IV (CAR4). Here, we report two novel knock-in mouse lines Plvap-CreER and Car4-CreER, which genetically target gCap and aCap, respectively. Induced by tamoxifen, the Plvap-CreER and Car4-CreER alleles mediate specific and efficient Cre-loxP recombinations in PLVAP+ gCap and CAR4+ aCap, respectively, in the lungs. These two mouse lines are useful genetic tools to investigate cell fates and functions of PLVAP+ and CAR4+ cells in lung homeostasis, injury and repair.
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